Make for Italy, that's suffering coastal erosion (5)
I believe the answer is:
total
'make' is the definition.
(thesaurus)
'for italy that's suffering coastal erosion' is the wordplay.
I cannot really see how this works, but
'for' could be 'to' (eg both can mean 'in the opinion of') and 'to' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for total that I've seen before include "Entirety" , "Not qualified" , "Final tally" , "Complete sum" , "The whole, sum" .)